28171052

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 61142592

約数和(自身を除く): 32971540

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 193, 364, 386, 401, 772, 802, 1351, 1604, 2509, 2702, 2807, 5018, 5213, 5404, 5614, 10036, 10426, 11228, 17563, 20852, 35126, 36491, 70252, 72982, 77393, 145964, 154786, 309572, 541751, 1006109, 1083502, 2012218, 2167004, 4024436, 7042763, 14085526, 28171052]

約数ペア:

[(1, 28171052), (2, 14085526), (4, 7042763), (7, 4024436), (13, 2167004), (14, 2012218), (26, 1083502), (28, 1006109), (52, 541751), (91, 309572), (182, 154786), (193, 145964), (364, 77393), (386, 72982), (401, 70252), (772, 36491), (802, 35126), (1351, 20852), (1604, 17563), (2509, 11228), (2702, 10426), (2807, 10036), (5018, 5614), (5213, 5404)]